Methanopyrus Kandleri FEN-1 nuclease

Experimental Data Snapshot

  • Resolution: 2.20 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.200 
  • R-Value Observed: 0.202 

wwPDB Validation   3D Report Full Report

This is version 1.3 of the entry. See complete history


Structure and specificity of FEN-1 from Methanopyrus kandleri.

Shah, S.Dunten, P.Stiteler, A.Park, C.K.Horton, N.C.

(2015) Proteins 83: 188-194

  • DOI: https://doi.org/10.1002/prot.24704
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    DNA repair is fundamental to genome stability and is found in all three domains of life. However many archaeal species, such as Methanopyrus kandleri, contain only a subset of the eukaryotic nucleotide excision repair (NER) homologs, and those present often contain significant differences compared to their eukaryotic homologs. To clarify the role of the NER XPG-like protein Mk0566 from M. kandleri, its biochemical activity and three-dimensional structure were investigated. Both were found to be more similar to human FEN-1 than human XPG, suggesting a biological role in replication and long-patch base excision repair rather than in NER.

  • Organizational Affiliation

    Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona, 85721.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Flap endonuclease 1
A, B
355Methanopyrus kandleri AV19Mutation(s): 0 
Gene Names: fenMK0566
EC: 3.1
Find proteins for Q8TXU4 (Methanopyrus kandleri (strain AV19 / DSM 6324 / JCM 9639 / NBRC 100938))
Explore Q8TXU4 
Go to UniProtKB:  Q8TXU4
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8TXU4
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.20 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.200 
  • R-Value Observed: 0.202 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 55.331α = 90
b = 86.193β = 90
c = 147.617γ = 90
Software Package:
Software NamePurpose

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-11-12
    Type: Initial release
  • Version 1.1: 2014-12-24
    Changes: Database references
  • Version 1.2: 2015-02-04
    Changes: Derived calculations
  • Version 1.3: 2023-09-27
    Changes: Data collection, Database references, Derived calculations, Other, Refinement description, Source and taxonomy